i = 123
i = -123
i = -0x123
i = 0X1abc
i = 0x1ABC
i = -0o123
i = 0O0127
i = -0b1101
i = 0B1101
i = 123.
i = .123
i = 123.45
i = 0.123
i = 12.e+10
i = 12.34e+10
i = .12e-10
i = 0.12e-10
i = 12.34e10
i = 12+3j
i = 12+3J
i = 12+3.14e-10j
i = .12+.001j

i = 1_234
i = -1_234
i = -0x_123
i = 0X1_abc
i = 0x12_BC
i = -0o_123
i = 0O012_7
i = -0b10_10_11
i = 0B_11_01
i = 1_123.
i = .123_0
i = 0.123_0
i = 1_2.e+1_0
i = 12_345.123_0e-1_0
i = 1_234+3_456j
i = 12+3.143_1e-10j
i = 1_000.12+.0_001j

float(3e400)
x = 5e700
complex(1.4e308, 1.4e308)
abs_err = 5e-323
tiny = 5e-324
-1.+1E-300j
vals = [1e-500, 1e-315, 1e-200]
z2 = -1e1000j
repr(1e300 * 1e300 * 0)
weights=[1e-323, 1e-323]
